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1.发明授权公开(公告)号：US09547285B2
公开(公告)日：2017-01-17
申请号：US14165626
申请日：2014-01-28
Applicant: HITACHI, LTD.
Inventor： Hirotaka Takahashi , Yasushi Tomita , Ikuma Sugamata
Abstract: There is provided an electricity demand regulating system which estimates a load amount of an individual equipment whose measurement information can not be acquired and improves estimation accuracy of an electricity demand amount in a power system. The electricity demand regulating system for managing electric energy used by a consumer according to an operation state of the power system includes a storage part to store measurement information of a consumer equipment, and a generation part to generate a load pattern indicating a load amount tendency from the measurement information of the equipment stored in the storage part. A load amount of an equipment whose measurement information is not stored in the storage part is estimated from the load pattern generated by the generation part, and an electricity demand amount of the consumer is obtained based on the measurement information and the estimated load amount.
Abstract translation: 提供了一种电力需求调节系统，其估计不能获取测量信息的各个设备的负载量，并提高电力系统中的电力需求量的估计精度。 根据电力系统的运行状态，用于管理消费者的电能的电力需求调节系统具有：存储部，存储消费者设备的测量信息;以及生成部，生成表示负荷量倾向的负荷模式 存储在存储部分中的设备的测量信息。 根据由生成部生成的负载模式来估计不存储测定信息的设备的负荷量，根据测定信息和估计负荷量，求出消费者的电力需求量。
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公开(公告)号：US11143426B2
公开(公告)日：2021-10-12
申请号：US15320429
申请日：2014-06-20
Applicant: Hitachi, Ltd.
Inventor： Hirotaka Takahashi , Tsutomu Kawamura
IPC: F24F11/70 , F24F11/89 , F24F5/00 , F24F11/65 , F24F11/30 , F24F11/46 , F24F3/06 , G05B11/06 , G05B13/02 , G05B19/00 , G06Q99/00 , H02P23/00 , F24F140/50 , F24F11/54
Abstract: The purpose of the present invention is to minimize impact on the comfort of people in a room and to achieve energy conservation in heat-source functions in an energy network comprising a plurality of heat-source functions that generate cold water and/or warm water, and a plurality of air-conditioning functions that obtain an air-conditioning effect by consuming the cold water and/or warm water generated by the heat-source functions. Disclosed is an energy network comprising a plurality of heat-source functions that generate thermal energy, and a plurality of air-conditioning functions that obtain an air-conditioning effect by consuming the thermal energy generated by the heat-source functions, wherein the energy network comprises: a first control function that selectively starts or stops the heat-source functions; and a second control function that controls the output of the air-conditioning functions. When the first control function starts or stops the heat-source function(s), the second control function controls the total load of the plurality of air-conditioning functions to a desired magnitude.
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公开(公告)号：US10554065B2
公开(公告)日：2020-02-04
申请号：US15039520
申请日：2014-09-10
Applicant: Hitachi, Ltd.
Inventor： Noriyuki Miyake , Yasushi Tomita , Tsutomu Kawamura , Hirotaka Takahashi , Kenichi Kuwabara , Daisuke Hisajima , Junichi Yamada
Abstract: A battery control apparatus includes a reduced electricity cost analysis unit that obtains a discharge electric power cost at a discharge time and a charge electric power cost at a charge time of a battery, based on a basic cost and a unit cost of an electricity bill, and obtains a reduced electricity cost in which the charge electric power cost is subtracted from the discharge electric power cost for every discharge depth of the battery; an introduction cost analysis unit that calculates an introduction cost of the battery for every discharge depth of the battery; and a charge and discharge depth optimization unit that obtains a difference of the reduced electricity cost and the introduction cost for every discharge depth of the battery, and determines a charge and discharge depth of the battery based on the difference. The discharge of the battery is performed at the determined charge and discharge depth.
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Patent Agency Ranking
公开(公告)号：US11456619B2
公开(公告)日：2022-09-27
申请号：US16980491
申请日：2019-03-11
Applicant: Hitachi, Ltd.
Inventor： Tsutomu Kawamura , Masatoshi Kumagai , Hirotaka Takahashi , Ryousuke Nakamura
Abstract: Included are an energy management apparatus that manages at least one or more management target that consumes energy; and a user terminal that transmits and receives information to and from the energy management apparatus via a network. The energy management apparatus includes an energy management controller that prepares a question regarding a behavior of a user who uses the at least one or more management target, and transmits it to the user terminal. The user terminal includes a user terminal controller that transmits a question answer regarding the received question to the energy management controller when receiving the question transmitted from the energy management controller. The energy management controller predicts an energy consumption amount of the at least one or more management target based on the received question answer when receiving the question answer transmitted from the user terminal controller.
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公开(公告)号：US10677824B2
公开(公告)日：2020-06-09
申请号：US15757498
申请日：2016-06-16
Applicant: Hitachi, Ltd.
Inventor： Hirotaka Takahashi , Masahiro Adachi , Katsuhiro Matsuda
IPC: G01R21/133 , H02J3/38 , H02J3/00 , H02J3/18
Abstract: A distributed-generator power-generation-amount estimation apparatus and method capable of more accurately and easily estimating output by reflecting a power factor are disclosed. The apparatus estimates a power generation amount of a distributed generator interconnected to an electric power system from active power and reactive power measured at regular intervals by measurement means, the apparatus including power-factor estimation means for estimating, as a ratio of a time change amount of the active power and the reactive power, a power factor of the distributed generator interconnected to a demand side of the electric power system, distributed-generator power-generation-amount estimation means for having, from active power and reactive power measured at a time of no power when the distributed generator interconnected to the electric power system is not generating power, a first characteristic line representing a load characteristic on a coordinate plane based on active power and reactive power, a second characteristic line representing a distributed-generator characteristic on the coordinate plane, and estimating the difference between the active power and the reactive power at an intersection point of the first characteristic line and the second characteristic line, and the measured active power and the measured reactive power as the power generation amount of the distributed generator, and output means for outputting power-generation-amount estimation information on the distributed generator estimated by the distributed-generator power-generation-amount estimation means.
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公开(公告)号：US09787094B2
公开(公告)日：2017-10-10
申请号：US14366112
申请日：2012-11-28
Applicant: HITACHI, LTD.
Inventor： Hirotaka Takahashi , Yasushi Tomita , Ikuma Sugamata , Akira Kobayashi , Tsukasa Onishi , Takafumi Ebara
CPC classification number: H02J3/14 , G06Q10/06312 , G06Q50/06 , H02J13/0006 , H02J2003/143 , Y02B70/3225 , Y02B70/3266 , Y04S20/222 , Y04S20/242 , Y10T307/406
Abstract: A power demand regulation system has a power demand regulation device that regulates the load applied to equipment of an electrical power system by a load apparatus operating by means of power from the electrical power system, which supplies power to consumers. When regulating the load to the equipment, the power demand regulation device selects a load apparatus as the subject of a request for an alteration of operating state on the basis of by-apparatus load information, which is information of each load apparatus, and a regulation target value, which is the amount of load that is to be regulated, and, in the period from the start to the end of regulation, executes a plurality of times the outputting of an alteration request that requests the alteration of the operating state of the selected load apparatus.
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7.发明授权公开(公告)号：US09651972B2
公开(公告)日：2017-05-16
申请号：US14281971
申请日：2014-05-20
Applicant: HITACHI, LTD.
Inventor： Hirotaka Takahashi , Yasushi Tomita , Ikuma Sugamata , Maki Hayashi , Kahoru Kakimoto
CPC classification number: G05F1/66 , H02J3/14 , H02J2003/143 , Y02B70/3225 , Y02B70/3266 , Y04S20/222 , Y04S20/242
Abstract: The priority of a demand regulating control for a device is changed in accordance with a simple operation by a consumer. A demand regulating system has an operation unit that selects from among a plurality of consumption devices, on the basis of priority information and a regulating quantity, a plurality of control-target devices, which are targeted for demand regulating control reducing consumption of the resource. A control unit executes the demand regulating control on the basis of a control instruction; and an input unit receives a first operation by the consumer, and transmits first request information requesting a change in the priorities of the plurality of control-target devices, to the operation unit in accordance with the first operation. The operation unit, upon receiving the first request information, specifies the plurality of control-target devices, and changes the priorities of the plurality of control-target devices in the priority information.
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8.发明申请公开(公告)号：US20140327309A1
公开(公告)日：2014-11-06
申请号：US14366112
申请日：2012-11-28
Applicant: HITACHI, LTD.
Inventor： Hirotaka Takahashi , Yasushi Tomita , Ikuma Sugamata , Akira Kobayashi , Tsukasa Onishi , Takafumi Ebara
IPC: H02J3/14
CPC classification number: H02J3/14 , G06Q10/06312 , G06Q50/06 , H02J13/0006 , H02J2003/143 , Y02B70/3225 , Y02B70/3266 , Y04S20/222 , Y04S20/242 , Y10T307/406
Abstract: A power demand regulation system has a power demand regulation device that regulates the load applied to equipment of an electrical power system by a load apparatus operating by means of power from the electrical power system, which supplies power to consumers. When regulating the load to the equipment, the power demand regulation device selects a load apparatus as the subject of a request for an alteration of operating state on the basis of by-apparatus load information, which is information of each load apparatus, and a regulation target value, which is the amount of load that is to be regulated, and, in the period from the start to the end of regulation, executes a plurality of times the outputting of an alteration request that requests the alteration of the operating state of the selected load apparatus.
Abstract translation: 电力需求调节系统具有功率需求调节装置，该电力需求调节装置通过负载装置来调节对电力系统的设备的负载，该负载装置通过来自向消费者供电的电力系统的电力运行。 在调节对设备的负载的情况下，电力需求调节装置基于作为各负载装置的信息的装置负载信息和规定的功能，选择负载装置作为变更动作状态的对象的主体 目标值，即要调节的负载量，并且在从调节开始到结束的期间内执行多次输出请求更改操作状态的变更请求 选择负载装置。
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